text: #include "back.h"
  #include <cstring>
  #include <sstream>
  
  Back::Back(int _value)
  {
     std::stringstream sstream;
  
  
     sstream << "back "<< _value;
  
     command=new char[strlen(sstream.str().c_str())+1];
     strcpy(command, sstream.str().c_str());
  }
  double Back::get_delay()
  { 
     return 5; 
  }